A very large crystal of tourmaline, which, though it appears almost black, is actually a slightly translucent teal blue color under strong light. What is most distinctive about it, other than its size, is its fibrous crystal structure - as if composed of thousands of elongated, tightly stacked needles. The termination therefore has a rough appearance as these needle-like sub-crystals each terminate individually. Weighs in at 828 grams!